G2 Heavy Duty ball joints are designed to be stronger, better performing and more reliable than your factory ball joints. G2 Heavy Duty ball joints are precision made and are fully greasable, ensuring long service life and performance. Kit consists of:2 Upper Ball Joints,2 Lower Ball Joints,Installation Hardware, Important:Fit Jeep Wrangler JK 2 Doors 07-18,Fit Jeep Wrangler JK Unlimited 4 Doors 07-18 ,